CN210007971U

CN210007971U - microwave motion detection inductor

Info

Publication number: CN210007971U
Application number: CN201822261971.8U
Authority: CN
Inventors: 周文波
Original assignee: Dongguan Taiwen Photoelectric Technology Co Ltd
Current assignee: Dongguan Taiwen Photoelectric Technology Co Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2020-01-31
Anticipated expiration: 2028-12-30

Abstract

The utility model discloses an microwave motion detection sensors relates to microwave motion detection area, including power module and microwave induction circuit, power module external AC power supply for give the power supply of microwave induction circuit, still be equipped with the daylight sensor who is used for detecting daylight illumination on the microwave induction circuit, microwave induction circuit includes main control unit, response module, is used for the control module and the output control module of response module power supply, daylight sensor, output control module and control module all are connected with main control unit, and response module still passes through signal line connection main control unit for the signal that main control unit transmission response module gathered, the utility model discloses can realize automatic shutdown lamps and lanterns under the ambient illumination of ideal, inductor microwave module gets into low-power consumption dormant state, and it can reduce energy consumption, practices thrift electric power resource.

Description

microwave motion detection inductor

Technical Field

The utility model relates to an kinds of microwave motion detection technical field especially relates to kinds of microwave motion sensors.

Background

In the rapid development of society, the national consumption level is improved unprecedentedly, a large number of energy sources of the population are consumed excessively every day, energy conservation cannot be ignored, the energy consumption can be balanced, energy distribution can be balanced, the urban electricity waste problem can be solved, is obtained in many aspects, resources are saved, science and technology are innovative, the country is benefited, for example, a daily lighting system responds to national energy-saving and environment-friendly calls according to the living needs of people, brightening revolution is carried out on self lighting along with the social development trend, an energy-saving and environment-friendly lighting system with high technology content and humanization and intellectualization in is developed, and at present, in underground parking lots, corridors, stairs and elevators with enough light rays in the daytime, a plurality of lighting systems are always in a working state, or when the people leave the corresponding lighting range, a lamp cannot automatically enter dormancy, the lamp is still opened, the energy consumption is increased, and the electric power resources are wasted;

in another aspect, at present, the conventional controller generates "surge voltage" in the power grid due to the inductance in the power grid at the moment of switching on or off the switch, so that the surge current is generated, so called surge is surge, which is instantaneous overvoltage exceeding the normal voltage, refers to large current caused by high voltage like in a short time appearing in the power grid, essentially, the surge is violent pulses which occur in only seconds of millions;

particularly, when a relay is used as a switch execution unit, generally generates a very large surge current no matter the load size is a capacitive load, an inductive load or a capacitive load, as long as voltage and current exist at the moment when a ground contact of the relay is contacted or disconnected, the current is several times or even dozens of times larger than the current of a product during normal switching, the high current not only can interfere other equipment of a power grid, but also can greatly shorten the service life of the relay, therefore, the service life of the equipment is determined by the service life of the relay at , how to protect the relay contact and prolong the service life of the equipment, and the problem that the equipment can save resources better is considered in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model aims to provide an kinds of microwave motion detection inductors, it can solve the still defect of high power work of lamps and lanterns under the ambient light intensity of ideal, reduces energy resource consumption, saves the electric power resource.

The purpose of the utility model is realized by adopting the following technical scheme:

microwave motion detection sensors comprise a power supply module and a microwave sensing circuit, wherein the power supply module is externally connected with an alternating current power supply and used for supplying power to the microwave sensing circuit, and the microwave sensing circuit is also provided with a sunlight sensor used for detecting sunlight illumination;

the microwave induction circuit comprises a main controller, an induction module, a control module and an output control module, wherein the control module and the output control module are used for supplying power to the induction module, the daylight sensor, the output control module and the control module are all connected with the main controller, and the induction module is also connected with the main controller through a signal line and used for transmitting signals collected by the induction module to the main controller.

, the device also comprises a signal amplification processing module, the signal amplification processing module is arranged on the signal wire, and the induction module is in signal connection with the main controller through the signal amplification processing module.

, the device also comprises an input voltage detection module which is respectively connected with the main controller and the external AC power supply.

, the input voltage detection module is a zero-crossing detection circuit composed of a sampling resistor R9, a sampling resistor R13, a sampling resistor R14, a diode D5 and an optocoupler capacitor U3, the sampling resistor R9, the sampling resistor R13 and the sampling resistor R14 are connected in series , the end of the sampling resistor R14, which is not connected with the sampling resistor R13, is respectively connected with the cathode of the diode D5 and the -th input end of the optocoupler U3, the anode of the diode D5 is grounded, the second input end of the optocoupler U3 is grounded, the output end of the optocoupler U3 is connected with the main controller, and the second output end of the optocoupler U3 is grounded.

, a switch is arranged at the output end of the microwave induction circuit, and the main controller controls the on-off of the switch through an output control module.

, the switch is a relay.

, the power module adopts a full wave rectification mode and can convert the alternating current into two direct currents with different voltages to supply power to the microwave induction circuit.

, the control module is composed of a resistor R26, a resistor R10, a resistor R5, a capacitor C2, a switch tube Q3 and a switch tube Q2;

the grid of the switch tube Q2 is connected with the th end of the resistor R26 and the th end of the resistor R10 respectively, the second end of the resistor R26 is connected with the main controller, the second end of the resistor R10 is grounded, the drain of the switch tube Q2 is connected with the th end of the resistor R5 and the grid of the switch tube Q3 respectively, the second end of the resistor R5 is connected with the drain of the switch tube Q3 and then connected with the power module, and the source of the switch tube Q3 is connected with the capacitor C2 and then connected with the sensing module and the ground respectively.

, the output control module includes a resistor R1, a resistor R3, a transistor Q1 and a diode D1, wherein a base of the transistor Q1 is connected to a th end of the resistor R1 and an th end of the resistor R3, a collector of the transistor Q1 is connected to a second end of the resistor R1 and then grounded, a second end of the resistor R3 is connected to the main controller, and an emitter of the transistor Q1 is connected to the relay and the diode D1.

, the lamp further comprises a shell, the power module, the microwave induction circuit and the daylight sensor are arranged in the shell, a connecting piece which is detachably and fixedly connected with the lamp is arranged on the shell, the connecting piece comprises a hollow pipe and a flange nut, a power line is arranged in the hollow pipe, threads are arranged on the outer wall of the hollow pipe, and the flange nut is connected with the threads in a matched mode.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the microwave motion detection sensor is internally provided with the daylight sensor, so that the lamp can be automatically turned off under ideal environment illumination, and the microwave module of the sensor enters a low-power-consumption dormant state, so that the energy consumption can be reduced, and the power resource can be saved.

(2) The internal logic processing part of the microwave motion detection sensor accurately budgets the pull-in action time of the alternating current frequency relay according to the zero crossing point of the alternating current voltage sampled by the sampling circuit, and operates the relay to close the contact when the alternating current voltage crosses zero when the displacement of an object is detected, so that current impact, high-voltage ignition and the like are reduced, the contact of the relay is protected, and the service cycle of a product is prolonged.

Drawings

Fig. 1 is a block diagram of microwave motion detection sensors according to the present invention;

fig. 2 is a circuit diagram of microwave motion detection sensors provided by the present invention;

fig. 3 is a schematic structural diagram of a housing of microwave motion detection sensors according to the present invention.

In the figure: 1. a thread; 2. a housing; 3. and (4) a flange nut.

Detailed Description

The present invention will be described in with reference to the accompanying drawings and the detailed description, wherein it is to be understood that various embodiments or technical features described below can be combined arbitrarily to form new embodiments without conflict.

The utility model provides a specific implementation module block diagram of kinds of microwave motion detection sensors as figure 1 is, including power module and microwave induction circuit, power module external AC power supply for supply power for microwave induction circuit, still be equipped with the daylight sensor who is used for detecting sunlight illumination on the microwave induction circuit, microwave induction circuit includes main control unit, response module, is used for the control module and the output control module of giving the response module power supply, daylight sensor, output control module and control module all are connected with main control unit, response module still passes through the signal line and connects main control unit for the signal that the response module gathered is transmitted to main control unit.

Specifically, as shown in fig. 2, the device further includes a signal amplification processing module for receiving a signal of the sensing module, the signal amplification processing module is disposed on the signal line, it should be noted that an end of the sensing module is connected to the control module, and another end of the sensing module is connected to the signal amplification processing module through the signal line and then connected to the MCU.

As preferred embodiments, as shown in fig. 1-2, the device further includes an input voltage detection module, the input voltage detection module is respectively connected to the MCU and the external ac power supply, wherein the input voltage detection module is a zero-crossing detection circuit composed of a sampling resistor R9, a sampling resistor R13, a sampling resistor R14, a diode D5 and an optocoupler U3, wherein the sampling resistor R9, the sampling resistor R13 and the sampling resistor R14 are connected in series by , a end of the sampling resistor R14, which is not connected to the sampling resistor R13, is respectively connected to a cathode of the diode D5 and a input end of the optocoupler U3, an anode of the diode D5 is grounded, a second input end of the optocoupler U3 is grounded, a output end of the optocoupler U3 is connected to the main controller, and a second output end of the optocoupler U3 is grounded.

Specifically, the output end of the microwave induction circuit is further provided with a switch, the MCU controls the on-off of the switch through the output control module, as preferred embodiments, the execution unit of the switch is a relay, and the MCU controls the on-off of the relay through the output control module.

Preferably, the power module adopts a full-wave rectification mode, and can convert alternating current into two direct currents with different voltages to power the microwave induction circuit, as shown in fig. 1-2, the power module converts the output alternating current AC into direct currents of 5V and 12V for supplying the direct currents to the induction circuit.

As shown in FIG. 2, the preferred embodiments include a resistor R1, a resistor R3, a transistor Q1 and a diode D1, wherein the base of the transistor Q1 is connected to the of the resistor R1 and the of the resistor R3, the collector of the transistor Q1 is connected to the second end of the resistor R1 and then grounded, the second end of the resistor R3 is connected to the MCU, and the emitter of the transistor Q1 is connected to the relay and the diode D1, and the output control module is used to control the on-off of the relay.

Specifically, the control module comprises a resistor R26, a resistor R10, a resistor R5, a capacitor C2, a switch tube Q3 and a switch tube Q2, wherein a grid of the switch tube Q2 is respectively connected with a th end of the resistor R26 and a th end of the resistor R10, a second end of the resistor R26 is connected with the MCU, a second end of the resistor R10 is grounded, a drain of the switch tube Q2 is respectively connected with a th end of the resistor R5 and a grid of the switch tube Q3, a second end of the resistor R5 is connected with a drain of the switch tube Q3 and then connected with the power module, and a source of the switch tube Q2 is connected with the capacitor C2 and then respectively connected with the sensing module and the ground.

In this embodiment, as shown in fig. 1-2, the microwave motion detection sensor operates as follows:

the system comprises an AC input module, a power module, a control module, an MCU (microprogrammed control unit) and a signal amplification processing module, wherein the AC input module converts an input AC high voltage into a 5V or 12V direct current and provides a working power supply for each unit module, when a sunlight sensor detects ideal ambient illumination, the MCU closes the sensing module and the signal amplification processing module through the control module to save power consumption (less than 0.3W), when the sunlight sensor detects the unsatisfactory ambient illumination, the MCU supplies power to the sensing module and the signal amplification processing module through the control module, 1) when the sensing module detects a human body signal, the signal is sent to the signal amplification processing module, the amplified signal is transmitted to the MCU for operation processing, the MCU needs to be explained, in the utility model, the MCU receives the amplified signal and then acts on a zero-crossing detection signal at the same time on a switch, the AC voltage is sampled through a sampling resistor R9, a sampling resistor R13, a sampling resistor R14 and an optical coupler U3, the MCU generates interruption when the AC voltage is interrupted after the period of a time delay period of a period of the triode is equal to zero crossing signal, the period of the AC voltage is different from the period of the zero crossing signal of the triode, the period of.

It should be noted that the above-mentioned zero-crossing detection mode may be implemented by using a sampling resistor and an optical coupler as shown in fig. 2, or may be implemented by using a current transformer, and the mode of implementing detection by using a current transformer is also the scope of patent protection.

Specifically, the zero crossing detection mode mentioned above may be realized by the MCU in fig. 1, or may be realized by an operational amplifier and a comparator.

Preferably, as shown in FIG. 3, the utility model provides a microwave motion detection inductor still includes shell 2, power module, microwave induction circuit and daylight sensor locate in shell 2, be equipped with on shell 2 and be used for dismantling fixed connection's connecting piece with lamps and lanterns, the connecting piece includes hollow tube and flange nut 3, lay the power cord in the hollow tube, be equipped with screw thread 1 on the outer wall of hollow tube, flange nut 3 and screw thread 1 accordant connection, as preferred embodiment, this screw thread 1 chooses for use 1/2 insection, be equipped with the mounting hole on the lamps and lanterns, insert the hollow tube of this microwave motion detection inductor in the mounting hole, rethread screw thread 1 and flange nut 3's matching fix lamps and lanterns on microwave motion detection inductor's shell 2, the laying of this structure can make microwave motion detection inductor connect lamps and lanterns fast, high durability and convenient use, and simple installation.

As preferred embodiments, all functions of the utility model are arranged with infrared remote control operation, the use is convenient and simple, the microwave mode, the timing mode, the time interval mode and the fixed mode are arranged in the utility model, the multiple modes are selectable, and the related parameters of the holding time of the light brightness and the light brightness of the microwave sensitivity can be adjusted.

The utility model provides a built-in daylight sensor of microwave motion detection inductor self-closing lamps and lanterns under the ambient light intensity of ideal, close inductor microwave module and get into low-power consumption dormant state, realized energy-conserving purpose, reduced energy resource consumption, practice thrift electric power resource, simultaneously, the utility model discloses the accurate budget alternating current frequency relay actuation action time of alternating voltage zero crossing that inside logic processing part sampled according to sampling circuit, the closed contact of operation relay when detecting the object displacement zero crossing at the alternating voltage to reduce the current impact, high pressure is struck sparks etc. has protected the relay contact, has prolonged product life cycle and has reached resources-saving purpose, advances step, the utility model provides a microwave motion detection inductor's shell 2 on still is equipped with the connecting piece, and this connecting piece includes hollow tube and flange nut 3, is equipped with screw thread 1 on the outer wall of hollow tube, flange nut 3 and screw thread 1 accordant connection, can make this microwave motion detection inductor high-speed joint lamps and lanterns through the design of connecting piece, and convenient to use, the installation is simple.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

The microwave motion detection sensor comprises a power supply module and a microwave sensing circuit, wherein the power supply module is externally connected with an alternating current power supply and used for supplying power to the microwave sensing circuit;

the microwave induction circuit comprises a main controller, an induction module, a control module and an output control module, wherein the control module and the output control module are used for supplying power to the induction module, the daylight sensor, the output control module and the control module are all connected with the main controller, and the induction module is also connected with the main controller through a signal line and used for transmitting signals collected by the induction module to the main controller.
2. The microwave motion detection sensor of claim 1, wherein: the induction module is in signal connection with the main controller through the signal amplification processing module.
3. The microwave motion detection sensor of claim 1, wherein: the device also comprises an input voltage detection module, wherein the input voltage detection module is respectively connected with the main controller and an external alternating current power supply.
4. The microwave motion detection sensor according to claim 3, wherein the input voltage detection module is a zero-crossing detection circuit composed of a sampling resistor R9, a sampling resistor R13, a sampling resistor R14, a diode D5 and an optical coupling capacitor U3, the sampling resistor R9, the sampling resistor R13 and the sampling resistor R14 are connected in series one by one, a end of the sampling resistor R14, which is not connected with the sampling resistor R13, is respectively connected with a cathode of the diode D5 and a -th input end of the optical coupling U3, an anode of the diode D5 is grounded, a second input end of the optical coupling U3 is grounded, a -th output end of the optical coupling U3 is connected with the main controller, and a second output end of the optical coupling U3 is grounded.
5. The microwave motion detection sensor of claim 1, wherein: the output end of the microwave induction circuit is provided with a switch, and the main controller controls the on-off of the switch through an output control module.
6. The microwave motion detection sensor of claim 5, wherein: the switch is a relay.
7. The microwave motion detection sensor of claim 1, wherein: the power supply module adopts a full-wave rectification mode, and can convert alternating current into two direct currents with different voltages to supply power for the microwave induction circuit.
8. The microwave motion detection sensor of claim 1, wherein: the control module is composed of a resistor R26, a resistor R10, a resistor R5, a capacitor C2, a switching tube Q3 and a switching tube Q2;

the grid of the switch tube Q2 is connected with the th end of the resistor R26 and the th end of the resistor R10 respectively, the second end of the resistor R26 is connected with the main controller, the second end of the resistor R10 is grounded, the drain of the switch tube Q2 is connected with the th end of the resistor R5 and the grid of the switch tube Q3 respectively, the second end of the resistor R5 is connected with the drain of the switch tube Q3 and then connected with the power module, and the source of the switch tube Q3 is connected with the capacitor C2 and then connected with the sensing module and the ground respectively.
9. The microwave motion detection sensor as claimed in claim 1, wherein the output control module comprises a resistor R1, a resistor R3, a transistor Q1 and a diode D1, wherein a base of the transistor Q1 is connected to a terminal of the resistor R1 and a terminal of the resistor R3, respectively, a collector of the transistor Q1 is connected to a second terminal of the resistor R1 and then grounded, a second terminal of the resistor R3 is connected to the main controller, and an emitter of the transistor Q1 is connected to a relay and a diode D1, respectively.
10. The microwave motion detection sensor according to any of claims 1-9, further comprising a housing, wherein the power module, the microwave sensing circuit, and the daylight sensor are disposed in the housing, the housing is provided with a connector for detachable and fixed connection with a lamp, the connector comprises a hollow tube and a flange nut, a power cord is disposed in the hollow tube, the outer wall of the hollow tube is provided with a thread, and the flange nut is coupled to the thread.